206 results match your criteria: "Twin Cities Spine Center; Minneapolis[Affiliation]"

Introduction: The normative relationship between lumbar intervertebral disc space height (DSH) and neuroforaminal dimensions (NFD) has yet to be defined.

Research Question: The purpose of this study was to investigate the relationship between lumbar DSH and NFD using computed tomography (CT), accounting for influences of patient demographic and anthropometric characteristics.

Materials And Methods: We analyzed CT imaging of 350 female and 350 male patients.

View Article and Find Full Text PDF

Case: A patient presented with midline back pain radiating into the left lower extremity. Magnetic Resonance images revealed an abnormal midline dorsal structure described as a facet cyst. Rupture was attempted by spinal needle under fluoroscopic guidance.

View Article and Find Full Text PDF

Study Design: Retrospective study.

Objectives: The current study compares the ability of the modified Frailty Index (mFI), the American Society of Anesthesiologists (ASA) classification, the modified Charleston Comorbidity Index (mCCI), the American College of Surgeons Surgical Risk Calculator (SRC), and the Fusion Risk Score (FRS) to predict perioperative outcomes.

Methods: Comorbidity indices were calculated for patients undergoing elective thoracic and lumbar spinal fusion at a single institution and assessed for their discriminative ability in predicting the desired outcomes using an area under the curve (AUC) analysis.

View Article and Find Full Text PDF

This series of FactFinders presents a brief summary of the evidence and outlines recommendations to minimize risks associated with cervical epidural injections. Evidence in support of the following facts is presented. - 1) CILESIs should be performed at C6-C7 or below, with C7-T1 as the preferred access point due to the more generous dorsal epidural space at this level compared to the more cephalad interlaminar segments.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to examine the relationship between patients' preoperative expectations of pain relief and their functional outcomes and satisfaction after anterior cervical surgery, focusing on data collected from surgeries performed between 2016-2021.
  • Researchers analyzed data from 198 ACDF and 52 CDR patients, finding no significant links between expected pain relief and improvement in functional scores or satisfaction after 12 months; however, higher preoperative dissatisfaction was correlated with better postoperative improvement.
  • The results suggest that while patients’ preoperative expectations may not directly influence their outcomes, those who start off less satisfied may experience greater functional improvements following surgery.
View Article and Find Full Text PDF

Background: This study aimed to determine whether the iliac crests are truly at the level of L4 to L5, accounting for patient demographic and anthropometric characteristics.

Methods: We measured the umbilicus and iliac crests relative to the lumbar spine using computed tomography of patients without spinal pathology, accounting for the influences of patient height, weight, body mass index (BMI), sex, race, and ethnicity.

Results: A total of 834 patients (391 men and 443 women) were reviewed.

View Article and Find Full Text PDF

Study Design: Retrospective cohort study.

Introduction: Malpractice claims analysis is performed by several specialties to improve quality of patient care and to identify areas where physicians can improve their practice to mitigate the incidence of committing malpractice. The Food and Drug Administration has flagged over 80,000 injuries caused by spinal cord stimulator (SCS), making them the 3rd most flagged medical device.

View Article and Find Full Text PDF

Background: Successful treatments for intractable chronic low back pain (CLBP) in patients who are not eligible for surgical interventions are scarce. The superior efficacy of differential target multiplexed spinal cord stimulation (DTM SCS) to conventional SCS (Conv-SCS) on the treatment of CLBP in patients with persistent spinal pain syndrome (PSPS) who have failed surgical interventions (PSPS-T2) motivated the evaluation of DTM SCS versus Conv-SCS on PSPS patients who are non-surgical candidates (PSPS-T1).

Methods: This is a prospective, open label, crossover, post-market randomized controlled trial in 20 centers across the United States.

View Article and Find Full Text PDF

Anatomic Parameters for Diagnosing Congenital Lumbar Stenosis Based on Computed Tomography of 1,000 Patients.

J Am Acad Orthop Surg

November 2024

From the Loma Linda University School of Medicine, Loma Linda, CA (Shin, Brandt, Oliinik, Im, Marciniak, Vyhmeister, Razzouk), Department of Orthopaedic Surgery, Johns Hopkins University, Baltimore, MD (Kagabo), Twin Cities Spine Center, Minneapolis, MN (Ramos), Department of Dental Education Services (Oyoyo), Department of Radiology (Wycliffe), Loma Linda University Medical Center, Loma Linda, CA, Department of Orthopaedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (Lipa), Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA (Bono), Division of Orthopaedic Surgery, Jerry L. Pettis Memorial Veterans Hospital, Loma Linda, CA (Cheng), Department of Orthopaedic Surgery, Loma Linda University Medical Center, Loma Linda, CA (Danisa).

Introduction: Quantitative parameters for diagnosis of congenital lumbar stenosis (CLS) have yet to be universally accepted. This study establishes parameters for CLS using CT, assessing the influences of patient sex, race, ethnicity, and anthropometric characteristics.

Methods: Interpedicular distance (IPD), pedicle length, canal diameter, and canal area were measured using 1,000 patients between 18 and 35 years of age who were without spinal pathology.

View Article and Find Full Text PDF

Introduction: A retained sponge after spine surgery can cause serious medical complications and medicolegal problems. Intraoperative radiographs are commonly used to detect it. This study evaluated intraoperative radiographs under routine clinical conditions that most spine surgeons experience to detect retained sponges.

View Article and Find Full Text PDF

Objectives: This prospective, open-label, single-arm, multicenter study evaluated the use of differential target multiplexed (DTM) spinal cord stimulation (SCS) therapy for chronic upper limb pain (ULP).

Materials And Methods: A total of 58 candidates for SCS who had chronic ULP were enrolled at 11 sites in the USA. The safety and effectiveness of DTM SCS for treating chronic intractable ULP were evaluated over 12 months.

View Article and Find Full Text PDF

The effect of thoraco-lumbo-sacral orthosis wear time and clinical risk factors on curve progression for individuals with adolescent idiopathic scoliosis.

Spine J

November 2024

Gillette Children's Specialty Healthcare, 200 University Avenue E, St. Paul, MN 55101, USA; Department of Orthopedic Surgery, University of Minnesota, 2512 S 7th St # R200, Minneapolis, MN 55454, USA. Electronic address:

Background Context: The effectiveness of bracing with a thoraco-lumbo-sacral orthosis (TLSO) for adolescent idiopathic scoliosis (AIS) has been studied extensively, with a growing body of evidence supporting TLSO use. In this study we examine the effect of wear time and other important causal factors affecting curve progression and develop a risk model that can be applied to individual patients and is based on important casual factors.

Purpose: Understand the impact of TLSO wear time and other risk factors in order to guide optimal treatment.

View Article and Find Full Text PDF

Study Design: Modified Delphi consensus study.

Objective: To develop consensus-based best practices for the care of pediatric patients who have implanted programmable devices (IPDs) and require spinal deformity surgery.

Summary Of Background Data: Implanted programmable devices (IPDs) are often present in patients with neuromuscular or syndromic scoliosis who require spine surgery.

View Article and Find Full Text PDF

Background: Further optimization of the validated vertebral bone quality (VBQ) score using magnetic resonance imaging (MRI) may expand its clinical utility for bone mineral density (BMD) assessment. This study evaluated the correlations among cervical and thoracic VBQ scores, the validated Hounsfield Unit (HU) measured on computed tomography (CT), and dual-energy x-ray absorptiometry (DEXA) values.

Methods: We retrieved the medical and radiographic records of 165 patients who underwent synchronous MRI of the cervical and thoracic spine, as well as DEXA and CT imaging of the spine obtained within 1 year of each other between 2015 and 2022.

View Article and Find Full Text PDF

Morphometric analysis of cervical neuroforaminal dimensions from C2-T1 using computed tomography of 1,000 patients.

Spine J

May 2024

Departments of Orthopaedic Surgery and Neurologic Surgery, Loma Linda University Medical Center, 11234 Anderson St, Loma Linda, CA, 92354, USA. Electronic address:

Background: Race and sex differences are not consistently reported in the literature. Fundamentally, anatomical differences of cervical neuroforaminal dimensions (CNFD) amongst these groups would be important to know.

Purpose: To establish normative radiographic morphometric measurements of CNFD and uncover the influence of patient sex, race, and ethnicity while also considering anthropometric characteristics.

View Article and Find Full Text PDF

Purpose: To describe the incidence of reoperation and factors contributing to surgical revision within a minimum of 10 years after spinal fusion for scoliosis in patients with nonambulatory cerebral palsy (CP).

Methods: We conducted a retrospective review of consecutive nonambulatory patients with CP who underwent primary spinal fusion at a single specialty care center with a minimum of 10 years from their index surgery (surgery dates 2001-2011). Causes of reoperation were classified as implant failure/pseudoarthrosis, surgical site infection (SSI), proximal junctional kyphosis, prominent/symptomatic implants, and implant removal.

View Article and Find Full Text PDF

Introduction: Controversy exists regarding whether spinal implants need to be removed to treat postoperative deep wound infections (DWIs). This retrospective study aimed to determine whether the removal or retention of implants impacts the successful treatment of a DWI after spine surgery.

Methods: Postoperative spine surgery patients presenting with signs of infection who underwent irrigation and debridement (I&D) at Twin Cities Spine Surgeons at Abbott Northwestern Hospital, Minnesota, USA, were studied.

View Article and Find Full Text PDF

Background: Anterior cervical discectomy and fusions (ACDF) are among the most common cervical spine operations, with over 137,000 surgeries performed annually. Understanding reasons underlying malpractice pertaining to ACDF may inform physicians of practices to improve delivery of patient care and mitigate malpractice. The aim of our study was to analyze the causes and outcomes for lawsuits pertaining to ACDF.

View Article and Find Full Text PDF
Article Synopsis
  • The study assessed clinical and radiographic outcomes for patients who underwent instrumented anterior lumbar interbody fusion (ALIF) with anterior plate fixation, analyzing data from 100 patients over a follow-up period averaging 81 months.
  • Patients showed significant improvements in disability and pain scores, with a 30.86% improvement in the Oswestry Disability Index (ODI) and 18.56% improvement in the Visual Analog Score (VAS) post-surgery.
  • The fusion rates were high (95.45% through CT), but there were some complications, including a 10% reoperation rate and a 5% hardware failure rate, although overall results indicated effective surgical outcomes.
View Article and Find Full Text PDF

Objective: Osteoporosis is a common skeletal disease that greatly increases the risk of pathologic fractures and accounts for approximately 700,000 vertebral compression fractures (VCFs) annually in the United States. Cement augmentation procedures such as balloon kyphoplasty (KP) and percutaneous vertebroplasty (VP) have demonstrated efficacy in the treatment of VCFs, however, some studies report rates of readmission as high as 10.8% following such procedures.

View Article and Find Full Text PDF

Objectives: Intrathecal opioids delivered by implanted pumps are used to treat malignant or nonmalignant chronic pain. In this study, we 1) review a case in which intrathecal infusions of sufentanil along with other adjuvants were used and after an extended period led to an intrathecal mass and 2) compared and contrasted the potential mechanisms for these phenomena.

Materials And Methods: A woman aged 66 years with a history of scoliosis and multiple spine surgeries was treated with an implantable drug delivery system for treating persistent pain after laminectomy.

View Article and Find Full Text PDF

Background: The MRI-based vertebral bone quality (VBQ) score is an assessment tool for bone mineral density (BMD) that has been validated in adults against the clinical standard of dual-energy X-ray absorptiometry (DEXA). However, VBQ has yet to be validated against DEXA for use in adolescents. This study evaluated the associations between adolescent VBQ scores, DEXA Z-scores, and BMD values.

View Article and Find Full Text PDF

Study Design: Retrospective review of prospectively collected data.

Objective: The current study evaluates whether the addition of the Vertebral Bone Quality (VBQ) score to the Fusion Risk Score (FRS) improves its ability to predict perioperative outcomes.

Summary Of Background Data: The FRS was developed to assess preoperative risk in patients undergoing thoracic and lumbar fusions.

View Article and Find Full Text PDF

To evaluate whether preoperative conversion from a gastrostomy tube (G-tube) to a gastrojejunostomy tube (GJ-tube) decreases short-term postoperative aspiration pneumonia and gastrointestinal complications in children with neuromuscular scoliosis. We conducted a retrospective chart review from January 2006 to October 2021 of pediatric patients who had neuromuscular scoliosis and were fed with a G-tube before spinal fusion. Eligible patients were divided into two groups based on whether they were converted to a GJ-tube preoperatively.

View Article and Find Full Text PDF

Purpose: The primary aim of this study was to describe the feasibility, surgical approach window (SAW), and incision line (IL) for oblique lateral interbody fusion at L5-S1 (OLIF51) using computed tomography (CT). A secondary aim was to identify associations among approach characteristics and demographic and anthropometric factors.

Methods: We performed a radiographic study of 50 male and 50 female subjects who received abdominal CT imaging.

View Article and Find Full Text PDF